<%--
  Created by IntelliJ IDEA.
  User: Administrator
  Date: 2020/9/28
  Time: 14:50
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
欢迎你的访问
<hr/>
<%
    Object obj = session.getAttribute("USER_INFO");
    if (obj==null){
        session.setAttribute("RERROR","请登录后访问！");
        response.sendRedirect("c1.jsp");
    }
    out.print(obj);
%>
<a href="c4.jsp">注销</a>
</body>
</html>
